Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
French
German
Russian
Ukrainian
+
G
o
o
g
l
e
|
Forvo
|
+
RF-value
This HTML5 player is not supported by your browser
chromat.
RF-Wert
m
(retention factor; ratio of fronts)
Add
|
Report an error
|
Get short URL
